State Research Center of the Russian FederationConcern CSRI Elektropribor, JSC

Self-powered telephone intercommunication system BTS

The equipment is intended for paired duplex telephone communication between users, as well as intercom (conference) duplex communication between switching operator and a group of users, in emergency situation including the failure of onboard power supply system.

It provides communication:
- in gas- and smoke-polluted areas and rooms (using throat mike headsets and respiratory protection units);
- in rooms with high air pressure up to 10kg/cm2.